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Hybrid semiconductor-ferromagnetic-metal active optical isolator.

Published online by Cambridge University Press:  01 February 2011

Vadym Zayets  and
Koji Ando
Vadym Zayets
Affiliation:
Nanoelectronics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1–1–4, Tsukuba, Ibaraki 305–8568, Japan.
Koji Ando
Affiliation:
Nanoelectronics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1–1–4, Tsukuba, Ibaraki 305–8568, Japan.
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Abstract

The effect of non-reciprocal loss/gain in semiconductor-ferromagnetic-metal hybrid was studied. It is shown that the optical loss/gain of this semiconductor-ferromagnetic-metal hybrid differs for the forward and backward propagation when the magnetization is perpendicular to the light propagation and lies in the film plane. Using this effect a new design of optical isolator is proposed, which is beneficial for monolithic integration of optical isolator with laser diode. The non-reciprocal loss was experimentally observed in Ga1-xAlxAs waveguide covered by Co for the first time.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 834: Symposium J – Magneto-Optical Materials for Photonics and Recording , 2004 , J4.6
Copyright
Copyright © Materials Research Society 2005

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